Screen pressure & heat

[abednego]

I am thinking of upgrading my HTC Touch Pro2 -> Epic.

I've gone through about 3 devices... due to the "rainbow banding" or grease oil slick looking rectangle on the display. I heard the oil slick is caused from heat and/or pressure.

Oddly enough... I never apply pressure on the screen... no cases... no screen protectors... (although - I do keep it in my pants pocket)

Has anyone had any issues with the Epic's display? I'm paranoid of upgrading, purchasing accessories... and having the same result with a new phone